.header .logo img{ max-height: 40px!important; } .header .logo-mini img{ max-height: 40px; } #nav.sticky .logo-mini img, #nav .logo-mini img{ max-height: 30px; } @media screen and (max-width: 674px){ .page-index header:not(.sticky) .header .logo img{ max-height: 30px!important; } .header .logo-mini img{ max-height: 50px!important; } }